Home / 72,089,378.92-99,483,820.60-39,049,628.06

Finding the Fourth Proportional to 72,089,378.92, 99,483,820.60 and 39,049,628.06

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Solution

The fourth proportional to 72,089,378.92, 99,483,820.60 and 39,049,628.06 is: 53,888,745.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,089,378.92 : 99,483,820.60 = 39,049,628.06 : x
  2. Step 2: Convert to fraction form
    72,089,378.92/99,483,820.60 = 39,049,628.06/x
  3. Step 3: Cross multiply
    72,089,378.92x = 99,483,820.60 × 39,049,628.06
  4. Step 4: Simplify right side
    72,089,378.92x = 3,884,806,192,417,766
  5. Step 5: Solve for x
    x = 3,884,806,192,417,766/72,089,378.92
  6. Step 6: Final answer
    x = 53,888,745.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.